Newtown Victim's Parents Met With Shooter's Father

Alissa and Robbie Parker said they wanted to tell Peter Lanza "something."

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Emilie Parker, 6, was one of 20 children killed inside Sandy Hook Elementary School on Dec. 14, 2012.

The parents of one of the 20 first-graders killed at Sandy Hook Elementary School say they met with the gunman's father for over an hour in an effort bring some closure to the tragedy.

Alissa Parker told "CBS This Morning" in an excerpt of an interview that aired Thursday that she wanted to meet with Adam Lanza's father, Peter Lanza, to tell him "something" she needed to get out of her system.

It was unclear what they discussed or when the meeting took place. CBS plans to show the rest of the interview with Alissa and Robbie Parker on Friday morning, revealing more details about their meeting with Peter Lanza.

The Parkers' 6-year-old daughter, Emilie, died in December's shooting rampage. They tell CBS they wanted to ask Peter Lanza about his son's medical history and other issues.